<!DOCTYPE html>
<html>
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<head><title>Definite sizes with fixed flex-basis</title>
<link href="mailto:dgrogan@chromium.org" rel="author" title="David Grogan">
<link href="https://drafts.csswg.org/css-flexbox-1/#definite-sizes" rel="help">
<link href="http://test.csswg.org/suites/css-flexbox-1_dev/nightly-unstable/html/reference/ref-filled-green-100px-square.htm" rel="match">
<meta content="" name="flags">
<meta content="In a column flexbox, the height of a fully inflexible item with fixed flex-basis is definite even when the heights of the item and the container are indefinite." name="assert">

<style>
x-flexbox {
  display: flex;
  flex-direction: column;
}

x-item {
  flex: 0 0 100px;
}

x-item>div {
  width: 100px;
  height: 100%;
  background: green;
}

#reference-overlapped-red {
  position: absolute;
  background-color: red;
  width: 100px;
  height: 100px;
  z-index: -1;
}
</style>

</head><body><p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

<div id="reference-overlapped-red"></div>

<x-flexbox>
  <x-item>
    <div></div>
  </x-item>
</x-flexbox>
</body>
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